u/Adam7390

I'm sure you guys can help.

It was 2d retro action/platformish horror game.

It was set in a futuristic earth, it didn't look dystopian , it was actually quite beautiful almost like a solar punk future.

You were a train machinist caught in the middle of a zombie plague probably coming from space after either an accident on the earth's orbit or a terrorist attack, the zombies were covered in a black substance .

You had to travel with your train and at each stop you had to save survivors and complete various tasks in order to reach the next stop. In between stops you had to use your resources to feed or give first aid to your passengers. Despite the horror theme it felt quite poetic, leaving you with a sense of wonder